GetBalance.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Xml;
using Waher.Content;
using Waher.IoTGateway;
using Waher.Networking.HTTP;
using Waher.Persistence;
using Waher.Persistence.Filters;
using Waher.Script;
using Waher.Script.Abstraction.Elements;
using Waher.Service.IoTBroker.DataStorage;
 
namespace Waher.Service.IoTBroker.WebServices.Agent.Wallet
{
    public class GetBalance : AgentPostResource
    {
        public GetBalance()
            : base("Wallet/GetBalance",
                new KeyValuePair<Type, Expression>(typeof(Dictionary<string, object>), new Expression(jsonPattern)),
                new KeyValuePair<Type, Expression>(typeof(XmlDocument), new Expression(xmlPattern)))
        {
        }
 
        private static readonly string jsonPattern = Resources.LoadResourceAsText(typeof(GetBalance).Namespace + ".JSON.GetBalance.req");
        private static readonly string xmlPattern = Resources.LoadResourceAsText(typeof(GetBalance).Namespace + ".XML.GetBalance.req");
 
        public override async Task POST(HttpRequest Request, HttpResponse Response, Dictionary<string, IElement> Parameters)
        {
            AccountUser User = AssertUserAuthenticated(Request);
 
            EDaler.Wallet Wallet;
 
            if (XmppServerModule.EDaler is null)
            {
                Wallet = await Database.FindFirstIgnoreRest<EDaler.Wallet>(
                    new FilterFieldEqualTo("Account", User.UserName));
            }
            else
                Wallet = await XmppServerModule.EDaler.GetWallet(User.UserName, Gateway.Domain);
 
            if (Wallet is null)
            {
                string Currency = string.Empty;
 
                if (!(XmppServerModule.EDaler is null))
                    Currency = await XmppServerModule.EDaler.GetDefaultCurrency();
 
                Wallet = new EDaler.Wallet()
                {
                    Account = User.UserName,
                    Balance = 0,
                    Reserved = 0,
                    BalanceTimestamp = DateTime.UtcNow,
                    Created = DateTime.UtcNow,
                    Currency = Currency,
                    Domain = Gateway.Domain
                };
            }
 
            await Response.Return(new NamedDictionary<string, object>("Balance", AgentNamespace)
            {
                { "amount", Wallet.Balance },
                { "reserved", Wallet.Reserved },
                { "currency", Wallet.Currency.Value },
                { "timestamp", Wallet.BalanceTimestamp }
            });
        }
    }
}